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发明名称
Straightedge construction
摘要
申请公布号
US2567554(A)
申请公布日期
1951.09.11
申请号
US19470753990
申请日期
1947.06.11
申请人
EUGENE DIETZGEN CO.
发明人
DAVEY CLARENCE P.
分类号
B43L7/00;F16B5/00
主分类号
B43L7/00
代理机构
代理人
主权项
地址
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